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      <td>4.0.0.2</td>
      <td nowrap>2009-03-14</td>
      <td>Generalization of the <code>nothing</code> value. <code>nothing</code> is a symbol that designates <code>void</code> return from a function. I've implemented some guards that prevent <code>nothing</code> to be stored in local variables, object properties and array members.</td></tr></table>
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